1 pay-once alternative · 2026

Best Kit (ConvertKit) alternatives you can buy once (2026)

Kit (formerly ConvertKit) is an email platform for creators with automations and paid-newsletter support. Paid Creator plans list from $25/mo for 1,000 subscribers (about $290/yr), scaling with list size.

The lineup

The pay-once app that replaces part of Kit (ConvertKit)

🕊️ Postbird

Lists, segments, a drag-block builder, throttled sending & open/click tracking — no per-contact pricing.

Postbird covers the sending layer: lists, double opt-in, segments, a drag-block builder, throttled sending through any SMTP, and open/click tracking — with no per-contact pricing, so a growing list never grows the bill. It is $149 once on infrastructure you control.

$149 once

Product page · Postbird vs Kit (ConvertKit)

Why people leave Kit (ConvertKit)

Kit (formerly ConvertKit) is an email platform for creators with automations and paid-newsletter support. Paid Creator plans list from $25/mo for 1,000 subscribers (about $290/yr), scaling with list size. That is roughly $290 per year — about $1,450 over five years — and access stops the moment you cancel: the fee is for permission, not for ongoing work done on your behalf. The tools above do their slice of the job on your own hardware or your own server, so the cost is fixed at the sticker price.

Common questions

Is there a one-time-purchase alternative to Kit (ConvertKit)?

Yes — Postbird ($149 once). Each covers a genuine slice of what Kit (ConvertKit) charges for, and none of them has a renewal.

How much does Kit (ConvertKit) cost?

Kit (formerly ConvertKit) is an email platform for creators with automations and paid-newsletter support. Paid Creator plans list from $25/mo for 1,000 subscribers (about $290/yr), scaling with list size. Taken at face value, that is roughly $290 per year — $1,450 over five. The alternatives on this page are single payments, so their cost never grows.

Do these tools replace everything Kit (ConvertKit) does?

No — each one replaces the specific slice described in its card above, and the head-to-head page spells out where Kit (ConvertKit) still wins. Read the pairing before you cancel anything.

Looking at one specific app? Read the head-to-head: Postbird vs Kit (ConvertKit).